diff --git a/changelog.txt b/changelog.txt
index 8f914763e2..c8c283be7c 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,8 @@
+1.5.1 (2015-06-01)
+------------------------------------------------------------------------
+(None)
+
+
 1.5.1-RC1 (2015-05-08)
 ------------------------------------------------------------------------
 - Fix: Do not consider road junctions with trivial dead ends as branch points during town growth [FS#6245] (r27260, r27259, r27244)
diff --git a/known-bugs.txt b/known-bugs.txt
index 50bded8cb4..fb25980d05 100644
--- a/known-bugs.txt
+++ b/known-bugs.txt
@@ -1,6 +1,6 @@
 OpenTTD's known bugs
-Last updated:    2015-05-08
-Release version: 1.5.1-RC1
+Last updated:    2015-06-01
+Release version: 1.5.1
 ------------------------------------------------------------------------
 
 
diff --git a/os/debian/changelog b/os/debian/changelog
index ac1de8a738..2ab980f22a 100644
--- a/os/debian/changelog
+++ b/os/debian/changelog
@@ -1,3 +1,9 @@
+openttd (1.5.1-0) unstable; urgency=low
+
+  * New upstream release 1.5.1
+
+ -- OpenTTD <info@openttd.org>  Mon, 01 Jun 2015 21:00:00 +0200
+
 openttd (1.5.1~RC1-0) unstable; urgency=low
 
   * New upstream release 1.5.1-RC1
diff --git a/os/windows/installer/install.nsi b/os/windows/installer/install.nsi
index b7c16f574e..5b137d0b45 100644
--- a/os/windows/installer/install.nsi
+++ b/os/windows/installer/install.nsi
@@ -2,8 +2,8 @@
 !define APPV_MAJOR 1
 !define APPV_MINOR 5
 !define APPV_MAINT 1
-!define APPV_BUILD 0
-!define APPV_EXTRA "-RC1"
+!define APPV_BUILD 1
+!define APPV_EXTRA ""
 
 !define APPNAME "OpenTTD"   ; Define application name
 !define APPVERSION "${APPV_MAJOR}.${APPV_MINOR}.${APPV_MAINT}${APPV_EXTRA}"  ; Define application version
diff --git a/readme.txt b/readme.txt
index eb069e1aa7..c8978a0119 100644
--- a/readme.txt
+++ b/readme.txt
@@ -1,5 +1,5 @@
-Last updated:    2015-05-08
-Release version: 1.5.1-RC1
+Last updated:    2015-06-01
+Release version: 1.5.1
 ------------------------------------------------------------------------